PA DEP Investigates Hilcorp Fracking in Earthquake Nobody Felt

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earthquake.jpgYou can count on one hand the number of cases where fracking a shale well over top an active underground fault (never a good idea) has caused a detectable earthquake. Can we now add one more case in western PA? Officials from the PA Dept. of Environmental Protection are investigating whether or not fracking by Hilcorp in well in Lawrence County, PA caused two 1.9 earthquakes in the area on Monday. Just so you know, you can’t feel a 1.9 earthquake on the surface. The only way you know of such an earthquake is through special monitors maintained by the U.S. Geological Survey (USGS). A football stadium full of fans stomping their feet at the same time can (and has) caused earthquakes greater than 1.0 (see ODNR Temporarily Shuts Down Injection Wells After Low-Level Quake). You don’t even feel earthquakes on the surface until they hit around magnitude 4.0 and above. Still, with so little drilling happening in the state these days, chasing fracking earthquakes gives DEP investigators something to do, we suppose…

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